The Atom date formating code tries to create a RFC822 date. This date
requires to use the C locale for the date (for weekday-names and month-names).

This patch uses new POSIX functionality to create a C locale and strftime_l
to create a right RFC822 date.

Index: libmrss-0.17/src/mrss.h
===================================================================
--- libmrss-0.17.orig/src/mrss.h	2007-02-02 12:23:49.000000000 +0100
+++ libmrss-0.17/src/mrss.h	2007-04-01 19:46:41.000000000 +0200
@@ -364,6 +364,9 @@
   mrss_element_t element;
   int allocated;
 
+  /** For internal use only: */
+  void* c_locale;
+
   /* Data: */
 
   char *file;
Index: libmrss-0.17/src/mrss_free.c
===================================================================
--- libmrss-0.17.orig/src/mrss_free.c	2007-02-02 12:47:46.000000000 +0100
+++ libmrss-0.17/src/mrss_free.c	2007-04-01 19:46:41.000000000 +0200
@@ -22,9 +22,14 @@
 # error Use configure; make; make install
 #endif
 
+#define _GNU_SOURCE
+
 #include "mrss.h"
 #include "mrss_internal.h"
 
+#include <locale.h>
+
+
 static void __mrss_free_channel (mrss_t * mrss);
 static void __mrss_free_category (mrss_category_t * category);
 static void __mrss_free_hour (mrss_hour_t * hour);
@@ -202,6 +207,9 @@
       __mrss_free_item ((mrss_item_t *) old);
     }
 
+  if (mrss->c_locale)
+    freelocale (mrss->c_locale);
+
   if (mrss->allocated)
     free (mrss);
 }
Index: libmrss-0.17/src/mrss_parser.c
===================================================================
--- libmrss-0.17.orig/src/mrss_parser.c	2007-04-01 19:46:41.000000000 +0200
+++ libmrss-0.17/src/mrss_parser.c	2007-04-01 20:38:06.000000000 +0200
@@ -22,9 +22,13 @@
 # error Use configure; make; make install
 #endif
 
+#define _GNU_SOURCE
+
 #include "mrss.h"
 #include "mrss_internal.h"
 
+#include <locale.h>
+
 static void
 __mrss_parse_tag_insert (mrss_tag_t ** where, mrss_tag_t * what)
 {
@@ -133,7 +137,7 @@
 }
 
 static char *
-__mrss_atom_prepare_date (char *datestr)
+__mrss_atom_prepare_date (mrss_t *data, char *datestr)
 {
   char *ret = NULL;
   if (datestr)
@@ -150,8 +154,13 @@
 	  stm.tm_year -= 1900;
 	  char datebuf[256];
 	  free (datestr);
-	  strftime (datebuf, sizeof (datebuf), "%a, %d %b %Y %H:%M:%S %z",
-		    &stm);
+
+      if (!data->c_locale) {
+         data->c_locale = newlocale(LC_ALL_MASK,"C",NULL);
+      }
+
+	  strftime_l (datebuf, sizeof (datebuf), "%a, %d %b %Y %H:%M:%S %z",
+		    &stm, data->c_locale);
 	  ret = strdup (datebuf);
 	}
     }
@@ -269,16 +278,16 @@
 	  else if (!strcmp (cur->value, "published") && !item->pubDate
 		   && data->version == MRSS_VERSION_ATOM_1_0)
 	    item->pubDate =
-	      __mrss_atom_prepare_date (nxmle_get_string (cur, NULL));
+	      __mrss_atom_prepare_date (data, nxmle_get_string (cur, NULL));
 	  else if (!strcmp(cur->value, "updated" ) && !item->pubDate
 		  && data->version == MRSS_VERSION_ATOM_1_0)
 	    item->pubDate =
-         __mrss_atom_prepare_date (nxmle_get_string (cur, NULL));
+         __mrss_atom_prepare_date (data, nxmle_get_string (cur, NULL));
 
 	  /* issued -> pubDate (Atom 0.3) */
 	  else if (!strcmp (cur->value, "issued") && !item->pubDate)
 	    item->pubDate =
-	      __mrss_atom_prepare_date (nxmle_get_string (cur, NULL));
+	      __mrss_atom_prepare_date (data, nxmle_get_string (cur, NULL));
 
 	  /* id -> guid */
 	  else if (!strcmp (cur->value, "id") && !item->guid
@@ -701,7 +710,7 @@
 	  /* updated -> lastBuildDate */
 	  else if (!strcmp (cur->value, "updated"))
 	    data->lastBuildDate =
-	      __mrss_atom_prepare_date (nxmle_get_string (cur, NULL));
+	      __mrss_atom_prepare_date (data, nxmle_get_string (cur, NULL));
 
 	  /* author -> managingeditor */
 	  else if (!strcmp (cur->value, "author"))